When a transducer of finite size is used to measure the spectral density of a turbulent sound field, the results are dependent on the size of the transducer. If the transducer is separated from the turbulence by a non‐turbulent medium, or by an elastic layer, then the recorded pressure is a function of both transducer size and layer thickness. Analysis of the effect of transducer size and separating layer is the purpose of this paper. The theory is developed for computation of attenuation of spectral density as a function of transducer size and distance from the turbulent layer.